10.1007/s40094-019-00360-6

Investigation of carbon monoxide gas adsorption on the Al2O3/Pd(NO3)2/zeolite composite film

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  • Nastaran Mozaffari1,
  • Alireza Haji Seyed Mirzahosseini*1,
  • Amir Hossein Sari2,
  • Leila Fekri Aval3,
  1. Department of Environmental Engineering, Faculty of Natural Resources and Environment, Science and Research Branch, Islamic Azad University
  2. Plasma physics research centre, Science and research branch, Islamic Azad University, Tehran, Iran
  3. Plasma Physics Research Center, Faculty of Sciences, Science and Research Branch, Islamic Azad University

Published in Issue 2023-11-17

How to Cite

1.
Mozaffari N, Mirzahosseini AHS, Sari AH, Aval LF. Investigation of carbon monoxide gas adsorption on the Al2O3/Pd(NO3)2/zeolite composite film. J Theor Appl phys. 2023 Nov. 17;14(1). Available from: https://oiccpress.com/jtap/article/view/1866
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Abstract

AbstractIn this study, Al2O3/Pd(NO3)2/zeolite composite films have been fabricated by roll coating method and characterized by X-ray diffraction, energy-dispersive X-ray spectroscopy and field emission scanning electron microscopy. The gas adsorption was tested in an experimental setup by a continuous gas analyzer KIMO KIGAZ 210 at constant temperature and pressure (32 °C and 1.5 bar) and as a function of reaction time (s). The inlet CO gas concentration was 150 mg Lâ1, and the saturation level of CO gas concentration was 5 mg Lâ1. The maximum adsorption capacity (qmax) and maximum adsorption efficiency (%) were calculated as 111.16 mg gâ1 and 97%, respectively. Pseudo-first-order, pseudo-second-order, and intra-particle diffusion models were investigated to kinetic study of CO adsorption on Al2O3/Pd(NO3)2/zeolite adsorbents. Results indicated that CO adsorption follows the pseudo-second-order model well according to regression coefficient value (R2â=â0.98), and the value of pseudo-second-order rate constant of adsorption was obtained as 2âÃâ10â5 g mgâ1 sâ1. According to the intra-particle diffusion model, adsorption is affected by only one process. So, adsorption of CO by Al2O3/Pd(NO3)2/zeolite adsorbent indicated an effective adsorption by obtained results.

Keywords

  • Adsorption,
  • Alumina,
  • Carbon Monoxide,
  • Kinetic study,
  • Palladium II nitrate,
  • Zeolite
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